@article{com2aal00b,
  author = {S. Aalto},
  title = {Optimal control of batch service queues with finite capacity and linear holding costs},
  journal = {Mathematical Methods of Operations Research},
  year = {2000},
  volume = {51},
  number = {2},
  pages = {263--285},
  note = {},
  url = {http://www.springer.de/},
}